Last updated: February 24, 2025
January in Healdsburg, United States, is characterized by cool temperatures and vibrant winter landscapes. The month sees a maximum of 24°C (75°F), while the average dips to a crisp 9°C (49°F), with chilly nights bringing temperatures down to a minimum of -2°C (28°F). This period is marked by significant precipitation, totaling 139 mm (5.5 in) over 8 days, contributing to the lush greenery of the area. Humidity levels hover around 86%, creating a refreshing, invigorating atmosphere that highlights the region's natural beauty during winter.
In Healdsburg during January, temperatures exhibit a crisp variability, with minimums plummeting to -2°C (28°F) and maximums reaching a pleasant 24°C (75°F). The average temperature settles at around 9°C (49°F), marking it as one of the cooler months in this picturesque region. As the year progresses into February and March, temperatures show a gradual uptick, with February's highs nudging up to 26°C (80°F) and March hitting 28°C (83°F). This gradual warming trend continues into spring, where by April, the average climbs to 14°C (57°F), and maximums soar as the landscape transitions toward summer warmth. This pattern of increasing temperatures illustrates Healdsburg's shift from the crisp bite of winter to the inviting embrace of spring, ultimately paving the way for the hot summer months that follow.
In January, Healdsburg experiences significant precipitation, with a total of 139 mm (5.5 in) falling over 8 days. This marks a notable start to the year, where the wet season is clearly in effect, contributing to the lush landscapes that define the region. As winter progresses into February, rainfall slightly increases to 155 mm (6.1 in), maintaining the rhythm of a damp, cool month. However, as spring approaches, precipitation dramatically drops in March to 97 mm (3.8 in), continuing the trend towards drier weather. The transition is further highlighted in April and May, where rainfall tapers to just 45 mm (1.8 in) and 27 mm (1.1 in), respectively, heralding the arrival of the dry season. This clear seasonal shift reflects the characteristic Mediterranean climate of Healdsburg, where winter deluges give way to long, dry summers.
In Healdsburg, January stands out with a notably high humidity level of 86%, making it the most humid month of the year. This trend is particularly interesting as it sets a precedent, with February and November following closely at 84%. As spring approaches, humidity levels gradually decrease, dipping to 83% in March and 80% in both April and May, signaling a shift towards drier conditions. By mid-year, the humidity continues to decline, reaching its lowest point of 66% in August, before experiencing a slight uptick in the fall months with September at 68% and October at 72%. As the calendar year comes full circle, December and January each revert back to higher humidity levels, echoing the seasonal pattern of increased moisture. This cyclical rhythm underscores Healdsburg’s climate dynamics, offering a captivating blend of humidity variations throughout the year.
In January, Healdsburg experiences a moderate UV Index of 3, indicating a burn time of approximately 30 minutes. As the months progress into February, the UV Index rises to 5, maintaining the moderate category, but signaling a gradual increase in sun intensity. By March, the UV level reaches a notable 7, moving into the high exposure zone, which shortens burn time to 25 minutes. April marks a significant shift, with the UV Index peaking at 9 and progressing into a very high category, cutting burn time to just 15 minutes. The trend continues into May and June, where exposure escalates to 10 and 11 respectively, reflecting extreme sun conditions with only a 10-minute burn time. This high exposure period remains through July, before tapering back slightly in August and September. By the time October rolls in, the UV Index drops to 6, allowing for a more manageable 25-minute burn time, before returning to moderate levels in November and December with indices of 4 and 3 respectively. This pattern underscores the importance of sun safety awareness throughout the year in Healdsburg. For further details, explore the Healdsburg UV Index.
UV Risk Categories
As January unfolds in Healdsburg, the sun graces the town with 141 hours of its warm embrace, a gentle start to the year. This gradual awakening to longer days is evident as sunshine hours increase significantly in February and continue to climb through the spring. By April, locals can bask in 298 hours of sunlight, leading into the lush summers where sunshine peaks in July with a splendid 390 hours. The trend then gracefully shifts, as the golden rays begin to wane, with August still enjoying 349 hours before autumn invites a decline. By December, just 185 hours of sunshine remains, marking the close of the year. This rhythmic dance of light showcases Healdsburg's delightful transition through the seasons, promising a sun-filled journey ahead.
In Healdsburg, January marks the beginning of the year with a 37% chance of sunny weather, setting the stage for a gradual increase in sunshine as the seasons progress. Notably, February sees a significant jump to 57%, hinting at the approach of warmer days. By March, the likelihood rises to 63%, and the trend continues upward through the spring and summer months, peaking in May at an impressive 85%. This charming Sonoma County locale experiences a consistent arc of improving weather, with sunshine becoming a delightful staple as the year unfolds, yet January remains a reserved month, still embracing its cooler, cloudier character before the sun takes charge in subsequent months.
In January, Healdsburg experiences about 9 hours of daylight, setting the stage for a gradual increase as the month gives way to February, which sees 10 hours of sunlight. This upward trend continues through March, reaching 11 hours as spring approaches and the days grow longer. By April, the daylight extends to 13 hours, and as May rolls in, residents enjoy a delightful 14 hours of brightness—a peak that lasts through June and July. The summer months bask in this abundance of light before daylight begins to wane, with August still holding onto 13 hours, but September sees a subtle retreat to 12 hours. As autumn settles in, the daylight diminishes further, with October at 11 hours and November following closely at 10 hours. Finally, December mirrors January’s low point with 9 hours, completing the cycle of seasonal change in Healdsburg's daylight duration. The rhythmic ebb and flow of sunlight not only marks the passage of time but also heralds the beautiful transitions between seasons in this charming Californian town.
In January, the winds in Healdsburg, California, are typically gentle, with an average speed of 1.9 m/s (4 mph), setting a calm tone for the new year. This tranquility is mirrored in the subsequent months, as February through April maintain a consistent wind speed of 2.3 m/s (5 mph), providing a slight uptick that hints at the approaching spring. As the year progresses into May, winds begin to pick up, reaching an average of 2.9 m/s (6 mph), before tapering off again during the summer months of July and August, when the winds drop back to 1.9 m/s (4 mph). The fall months see a modest increase, peaking in October at 2.1 m/s (5 mph), before settling down to the quietest wind speed of 1.5 m/s (3 mph) in November. Overall, Healdsburg’s wind patterns showcase a gentle ebb and flow, reflecting the serene charm of this region throughout the year.
The weather in Healdsburg changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Healdsburg and find detailed weather information for every month.
In comparing the weather between January and February, January experiences a slightly milder average temperature of 9°C (49°F), with a maximum of 24°C (75°F) and a minimum of -2°C (28°F). In contrast, February sees a marginal increase in average temperature at 10°C (50°F), with higher maximums peaking at 26°C (80°F), but also dips to a lower minimum of -4°C (26°F). Precipitation is slightly higher in February at 155 mm (6.1 in), compared to January's 139 mm (5.5 in), although both months see precipitation on approximately eight days. Humidity is relatively stable, being 86% in January and slightly lower at 84% in February. For more detailed insights, you can visit Healdsburg weather in February.
In January, temperatures typically range from a minimum of -2°C (28°F) to a maximum of 24°C (75°F), with an average of 9°C (49°F). This month experiences significant precipitation, totaling 139 mm (5.5 inches) over approximately 8 days, and high humidity at 86%. In contrast, March sees slightly milder conditions, with temperatures ranging from -1°C (30°F) to 28°C (83°F) and an average of 11°C (52°F). Precipitation decreases to 97 mm (3.8 inches), occurring over 11 days, accompanied by a drop in humidity to 83%. For more detailed information, you can check the Healdsburg weather in March.
In January, the weather is characterized by cooler temperatures, with a minimum of -2°C (28°F) and an average of 9°C (49°F). The month experiences significant precipitation, totaling 139 mm (5.5 in) over about 8 days, accompanied by a high humidity level of 86%. In contrast, April brings much warmer conditions, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 31°C (89°F) and an average temperature of 14°C (57°F). Precipitation decreases considerably to 45 mm (1.8 in) over just 5 days, and humidity also drops slightly to 80%. For more details on the weather during this time, you can check Healdsburg weather in April.
In January, temperatures in Healdsburg range from a chilly minimum of -2°C (28°F) to a comfortable maximum of 24°C (75°F), with an average of 9°C (49°F). The month experiences significant precipitation, averaging 139 mm (5.5 in) over about 8 days, contributing to higher humidity levels at 86%. In contrast, May brings warmer temperatures, with minimums around 3°C (39°F) and maximums soaring to 35°C (96°F), resulting in a more pleasant average of 17°C (62°F). Additionally, May sees much less rainfall—only 27 mm (1.1 in) over 3 days—and lower humidity at 80%. For a more detailed look at May weather in Healdsburg, visit Healdsburg weather in May.
In January, Healdsburg experiences a wide range of temperatures, with a minimum of -2°C (28°F) and a maximum of 24°C (75°F), leading to an average temperature of 9°C (49°F). The month is characterized by high humidity at 86% and significant rainfall, totaling 139 mm (5.5 in) over 8 days, creating a damp and cool atmosphere. In contrast, June brings a warm embrace, with a minimum temperature of 8°C (47°F) and reaching highs of up to 40°C (105°F), resulting in an average of 21°C (69°F). This month is notably dry, with only 2 mm (0.1 in) of precipitation over 0 days, and humidity drops to a more comfortable 76%. For more details on the delightful weather in June, check out Healdsburg weather in June.
When comparing the weather in January and July, it's clear that the two months present strikingly different climates. In January, temperatures can dip as low as -2°C (28°F) and typically reach a pleasant average of 9°C (49°F), with occasional highs of 24°C (75°F). This month is characterized by significant precipitation at 139 mm (5.5 in) over about 8 days, contributing to a high humidity level of 86%. Conversely, July boasts a much warmer environment, with minimum temperatures around 11°C (53°F) and an average high of 22°C (71°F), soaring up to a maximum of 38°C (101°F) on particularly hot days. Notably, July is dry, with no recorded precipitation, low humidity at 70%, and clear skies dominating the weather. For a detailed overview of July conditions, you can explore Healdsburg weather in July.
Comparing the weather in January and August reveals a stark contrast. January experiences a cool climate with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 24°C (75°F), accompanied by significant precipitation of 139 mm (5.5 in) over 8 days and high humidity at 86%. In contrast, August boasts much warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 38°C (101°F), but it enjoys a completely dry spell, recording no precipitation over the month and lower humidity at 66%. For a closer look at the summer conditions, check out Healdsburg weather in August.
January and September present quite a contrast in weather. In January, temperatures can dip as low as -2°C (28°F), with an average of 9°C (49°F) and a maximum reaching 24°C (75°F). This month also experiences considerable precipitation, with about 139 mm (5.5 in) falling over 8 days and high humidity at 86%. In stark contrast, September boasts a milder climate, featuring minimum temperatures of 7°C (45°F) and an average of 20°C (69°F), with maximum highs soaring up to 41°C (105°F). It’s a dry month, with negligible precipitation of just 2 mm (0.1 in) and only 0 rainy days, alongside a significantly lower humidity level of 68%. For more detailed insights, visit Healdsburg weather in September.
When comparing January and October weather, a stark contrast emerges. January temperatures range from a chilly minimum of -2°C (28°F) to a warm maximum of 24°C (75°F), with an average of 9°C (49°F). During this month, the region experiences significant precipitation of 139 mm (5.5 in) over about 8 days and high humidity at 86%. In contrast, October enjoys milder conditions, with minimum temperatures at 3°C (38°F) and maximums reaching up to 35°C (96°F), resulting in a comfortable average of 17°C (63°F). This month sees much less rain, with only 41 mm (1.6 in) falling on just 2 days and a drop in humidity to 72%. For a detailed look at October's weather specifics, you can check the following link: Healdsburg weather in October.
When comparing the weather in January and November, January tends to be slightly colder, with average temperatures ranging from -2°C (28°F) to a maximum of 24°C (75°F), while November sees slightly milder averages from -1°C (30°F) to a maximum of 28°C (83°F). Additionally, January experiences more precipitation, totaling 139 mm (5.5 in) over 8 days, compared to November's lower 58 mm (2.3 in) over just 5 days. Humidity levels are fairly comparable, with January at 86% and November slightly lower at 84%. For more detailed information, you can refer to Healdsburg weather in November.
In comparing the weather between January and December, we see that both months have similar temperature ranges, with minimum temperatures around -2°C (28°F), average temperatures close to 9°C (49°F), and maximum temperatures slightly varying from 23°C (73°F) in December to 24°C (75°F) in January. However, January experiences a higher level of precipitation at 139 mm (5.5 in) compared to December's 101 mm (4.0 in), while both months have an equivalent number of rainy days at 8. Humidity is also slightly higher in January at 86% versus 84% in December, which can contribute to a more damp feeling. For more detailed information, you can check Healdsburg weather in December.
In January, Healdsburg experiences a distinct shift from the milder, drier months of late spring and summer. With cooler average temperatures and higher humidity levels, this month brings a refreshing contrast, characterized by occasional rainfall that nourishes the landscape. While the afternoons can reach pleasant highs, the chilly mornings and evenings remind us of winter's presence. This combination of precipitation and cooler air creates a unique ambiance, ideal for cozy indoor activities and vibrant outdoor exploration. For those curious about the broader climate patterns, check out Healdsburg Climate for deeper insights.